How many calories are in half a cup of pesto? The full breakdown
                                
                                
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                                    4 min read                                
                            
                                Half a cup of pesto contains a wide range of calories, typically varying from roughly 460 to nearly 600 calories, depending on the specific brand and recipe ingredients. This dense and flavorful sauce is calorie-rich primarily due to its high content of olive oil, nuts, and cheese.